| Major Object | 2016 | 2015 | 2014 | 2013 |
| Continuous Charges | $60,978,153 |
$48,353,314 |
$57,369,436 |
$40,502,452 |
Contractual Services | $126,861,379 |
$129,341,824 |
$133,363,970 |
$131,641,814 |
Equipment | $27,081,502 |
$22,104,596 |
$23,482,094 |
$26,910,751 |
Obligations | $51,901,342 |
$54,066,214 |
$53,838,769 |
$51,412,370 |
Personal Services | $483,673,608 |
$468,352,634 |
$458,261,867 |
$447,055,647 |
Plant And Improvements | $49,520,528 |
$67,026,367 |
$44,144,085 |
$45,053,630 |
Property Improvements | $2,541,791 |
$2,148,394 |
$2,444,955 |
$1,771,999 |
Supplies And Materials | $15,670,079 |
$18,017,770 |
$18,555,511 |
$14,494,177 |
Transfer Payments | $108,117,926 |
$99,037,975 |
$96,344,888 |
$95,229,305 |
